Inter-channel stimulated Raman scattering becomes increasingly important as the transmission bandwidth grows. To study the impact of this effect, modifications to the GN model from[1]} were used to estimate the system performance. The power transfer effect from ISRS modifies the signal power profile of every channel along the optical fibre, either reducing NLI if the channel is being depleted or increasing them if channel is being amplified with other cross-talk effects being negligible[2]}. Additionally, the gain of the optical amplifiers after each span needs to be tailored to compensate the span loss and ISRS interactions for each channel. The overall ASE noise introduced by an optical amplifier after a fibre span including the ISRS effects is given by:
\(P_{ASE,i}=n_{sp} h \frac{\omega _i}{2\pi }\left( \frac{G_{\alpha ,i}}{G_{ISRS,i}}-1\right)F_{b},\) 
